FMI manufactures high quality Voltage Controlled Crystal Oscillators (VCXOs) including LVDS VCXOs in
standard and custom surface mount and thru-hole packages. A VCXO allows the user to vary the
output by varying a control voltage to pin 1. Control voltage is usually specified by a max
& min voltage applied to pin 1 of VCXO oscillators. Typical control voltage ranges are
0.5 to 4.5 Vdc for a 5.0 Vdc supply voltage and 0.3 to 3.0 Vdc for a 3.3 Vdc supply
voltage. The center frequency of a VCXO is the output at the center control
voltage @
+25°C. It is specified as a target with an allowable deviation. The
target frequency is specified in MHz or kHz and tolerance is in ± ppm.
VCXO Style Choices- Ceramic SMD VCXOs - CMOS | Ceramic SMD VCXOs - LVDS | Ceramic SMD VCXOs - LVPECL Thru-hole VCXOs - CMOS | Thru-hole VCXOs - PECL, LVPECL |
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Ceramic SMD VCXOs - CMOS | ||||||
Model | Picture | Size | Style | Frequency Range | Temp Range Max | Notes |
FMVC5S3 |
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5 x 3.2 mm | 4 Pad SMD | 1.5 MHz to 52 MHz | -40ºC to +85ºC | +5V |
FMVC3S3 |
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5 x 3.2 mm | 4 Pad SMD | 1.5 MHz to 52 MHz | -40ºC to +85ºC | +3.3V |
FMVC5S |
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5 x 7 mm | 6 Pad SMD | 1.544 MHz to 200 MHz | -40ºC to +85ºC | +5V |
FMVC3S |
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5 x 7 mm | 6 Pad SMD | 1.544 MHz to 200 MHz | -40ºC to +85ºC | +3.3V |
Ceramic SMD VCXOs - LVDS | ||||||
Model | Picture | Size | Style | Frequency Range | Temp Range Max | Notes |
FMVCLVDSC3S | ![]() |
5 x 7 mm | 6 Pad SMD | 10 MHz to 250 MHz | -40ºC to +85ºC | +3.3V |
Thur-hole VCXOs - CMOS | ||||||
Model | Picture | Size | Style | Frequency Range | Temp Range Max | Notes |
FMVC46 | ![]() |
20 x 13 x 6 mm | Full DIP | 20 MHz to 160 MHz | -40ºC to +85ºC | +5V |
FMVC33 | ![]() |
20 x 13 x 6 mm | Full DIP | 20 MHz to 200 MHz | -40ºC to +85ºC | +3.3V |
FMVC48 | ![]() |
13 x 13 x 5.5 mm | Half DIP | 20 MHz to 160 MHz | -40ºC to +85ºC | +5V |
FMVC49 | ![]() |
13 x 13 x 5.5 mm | Half DIP | 20 MHz to 200 MHz | -40ºC to +85ºC | +3.3V |
FMVC47 | ![]() |
20 x 13 x 6 mm | Full DIP | 40 MHz to 160 MHz | -40ºC to +85ºC | +5V high-frequency via multiplier |
FMVC30 | ![]() |
20 x 13 x 6 mm | Full DIP | 40 MHz to 200 MHz | -40ºC to +85ºC | +3.3V high-frequency via multiplier |
Ceramic SMD VCXOs - LVPECL | ||||||
Model | Picture | Size | Style | Frequency Range | Temp Range Max | Notes |
FMVCLVPC3S (call for info) |
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5 x 7 mm | 6 Pad SMD | 70 MHz to 500 MHz | -40ºC to +85ºC | +3.3V |
Thru-hole VCXOs - PECL, LVPECL | ||||||
Model | Picture | Size | Style | Frequency Range | Temp Range Max | Notes |
FMVCPCL | ![]() |
20 x 13 x 6 mm | Full DIP | 30 MHz to 160 MHz | -40ºC to +85ºC | +5V |
FMVCPCL3 | ![]() |
20 x 13 x 6 mm | Full DIP | 30 MHz to 160 MHz | -40ºC to +85ºC | +3.3V |